Help Center

Frequently Asked Questions

• Will it fit my machine?Your model number, single-needle vs MultiStream, K-Duo, holders
  Back

  Will it fit my machine?

  • How do I find my coffee maker model number?

    Look for a label on the bottom or the back of your machine — the model number is printed there, for example K-Supreme Plus or DCC-3200. It’s also on the original box and in your order confirmation email. Send us that number and we’ll tell you exactly which of our products fits.

  • What’s the difference between single-needle and MultiStream brewers?

    A standard Keurig pierces the pod with one needle in the center. A MultiStream brewer uses five needles that spray water over the grounds from several points at once. The two need differently built pods — a single-needle pod won’t seal correctly in a MultiStream machine, and the other way round.
    Read the full compatibility guide →

  • Which reusable K-Cup do I need?

    Match it to your needle count. Single-needle brewers — K-Classic, K-Select, K-Elite, K-Compact, K-Express, the K-Mini series, K-Iced, K-Latte, the K-Café series, K-Duo, K-Duo Essentials and K-Duo Plus — take our single-needle pods. MultiStream brewers — K-Supreme, K-Supreme Plus, K-Slim (5-needle), K-Brew+Chill and K-Duo Hot & Iced (Gen 2) — take our MultiStream pods.
    Which reusable K-Cup do I need? →

  • I have a K-Duo. Which product do I need?

    It depends on which side you brew from. For the single-serve side, match the needle count: K-Duo and K-Duo Essentials are single-needle, K-Duo Hot & Iced (Gen 2) is MultiStream. For the carafe side, use our reusable K-Duo carafe filter, which fits K-Duo, K-Duo Essentials and K-Duo Hot & Iced. It does not fit the K-Duo Plus single-serve brewer.

  • Do your pods work with Keurig 2.0?

    Most of them do. Our stainless steel pods, the 7-pack and 4-pack color sets and the purple packs are all rated for Keurig 1.0 and 2.0 brewers. There is one exception: the 4 Reusable K-Cups (K-Express, K-Elite, K-Classic, K-Mini & More) pack is built for 1.0-series single-needle brewers and isn’t rated for 2.0. Keurig 2.0 machines read the pod lid before they brew, which is why two pods that look similar can carry different ratings — check the compatibility block on the product page, or send us your model and we’ll confirm.

  • I have a K-Supreme SMART. Which pod fits?

    Use our stainless steel MultiStream 2-pack — it’s the version rated for K-Supreme SMART and K-Supreme Plus SMART. Our plastic MultiStream 4-packs fit K-Supreme, K-Supreme Plus, K-Slim, K-Brew+Chill and K-Duo Hot & Iced (Gen 2), but not the SMART models.

  • Which water filter holder do I need — tall or short?

    Measure your water reservoir. Over 8 inches tall, or a side-loading tank, means the Tall Holder. Under 8 inches means the Short Holder.
    See the full model list in the Water filters section →

  • Do you have water filters for Cuisinart?

    Yes. Our Cuisinart charcoal filters fit every Cuisinart coffee maker with a built-in filter slot — drip brewers, thermal carafe models and single-serve machines — in 6-packs and 12-packs. Cuisinart and Keurig filters are different shapes and aren’t interchangeable.
    Shop Cuisinart filters →
    Cuisinart water filter guide →

  • Do you have filters for Breville espresso machines?

    Yes. Our BWF100 charcoal filters fit Breville machines that use the BWF100 standard: Barista Express (BES870XL), Infuser (BES840XL), Dual Boiler (BES920XL), Oracle (BES980XL), plus BES900XL, BES860XL, BKC600XL and BKC700XL. Available in 6-packs and 12-packs.
    Shop Breville filters →

  • Are these genuine Keurig, Cuisinart or Breville parts?

    No. GoodCups products are our own accessories designed to be compatible with those machines. We’re not affiliated with Keurig, Cuisinart, Breville, Ninja or any other manufacturer, and we use their brand names only to describe what our products fit.

• Brewing & careWeak coffee, grounds in your cup, leaking pods, cleaning
  Back

  Brewing & care

  • How much coffee do I put in a reusable K-Cup?

    About 2 tablespoons — roughly 10–12 g. Leave 2–3 mm of space at the top so the lid closes properly and the grounds have room to expand. Overfilling is the single most common cause of weak coffee and leaks.

  • What grind should I use?

    A medium grind, about the texture of table salt. Too fine and water can’t pass through, so you get a weak, bitter cup with grounds in it; too coarse and the water runs straight past the coffee without extracting it.
    Choosing the right grind →

  • My coffee tastes weak or watery. How do I fix it?

    Almost always one of three things: the grind is too fine, the pod is overfilled, or the lid isn’t fully closed. Use a medium grind, fill to about 2 tablespoons, and make sure the lid snaps shut. If your brewer has a “strong” or “bold” setting, use it — reusable pods hold less coffee than a sealed commercial pod.
    Brewing techniques compared →

  • I’m getting coffee grounds in my cup.

    Your grind is probably too fine for a mesh filter. Go one step coarser, or drop a disposable paper liner into the pod — it catches fine particles and absorbs the oils that cause bitterness. Most people who use liners do it for the cleanup as much as the coffee: lift out, toss, done, no rinsing.
    Shop paper filters →

  • Do I need the paper filters, or is the mesh enough?

    The mesh alone works fine. Liners are worth it in two cases: you grind finer than medium, or you don’t want to rinse the pod after every cup. They’re optional, not required.

  • My reusable K-Cup is leaking.

    Check the silicone gasket around the lid first — over time it stretches, flattens or tears, and then the seal fails. You can replace just the gasket instead of the whole pod. Make sure you order the version that matches your lid: 1-hole for single-needle pods, 5-hole for MultiStream.
    6 common causes and fixes →
    Single-needle replacement gaskets →
    MultiStream replacement gaskets →

  • Are they dishwasher safe?

    Our stainless steel pods are dishwasher safe and won’t warp, stain or hold odors. For other products, check the individual product page — not every item is rated for the dishwasher.
    Single-needle steel pods →
    MultiStream steel pods →

  • How do I clean my pod?

    Rinse it under warm running water right after brewing — ten seconds is enough to stop coffee oils building up. Once a week, soak it for five minutes in warm water with a drop of dish soap for a deeper clean.
    Watch the how-to videos →

• Water filtersHow often to replace, prepping a new one, taste
  Back

  Water filters

  • How often should I replace the water filter?

    Every 2 months, or about 60 tank refills — whichever comes first. Replace sooner if you live in a hard-water area. An expired filter is worse than no filter at all, because trapped particles can wash back into the water.
    Shop replacement filters →

  • How do I prepare a new filter?

    Soak it in cold water for 5 minutes, rinse under cold running water for about 60 seconds, then push it into the holder until it clicks. Under ten minutes from start to finish.

  • Do I still need a filter if I use bottled or filtered water?

    It’s less critical, but still useful — the charcoal also catches minerals that build up as limescale inside the brewer. If you use distilled or reverse-osmosis water, you can skip it.
    Are Keurig water filters necessary? →

  • Do these filters actually change the taste?

    They remove chlorine, calcium and odor-causing impurities before the water reaches your coffee. If your tap water has any chlorine smell, the difference is noticeable on the first cup.
    Do water filters improve coffee taste? →

  • Will Keurig filters fit my Cuisinart, or the other way round?

    No. They’re different shapes and sit in different compartments. Use Keurig filters for Keurig brewers, Cuisinart filters for Cuisinart, and BWF100 for Breville.

  • Which water filter holder fits my Keurig?

    RESERVOIR	MODELS	YOU NEED
    RESERVOIROver 8″ tall or side-loading	MODELSK-Supreme, K-Supreme Plus, K-Slim, K-Express, K-Select, K-Classic, K-Elite, K-Iced, K-Café, K-Duo Plus	YOU NEEDTall Holder + 12 filters
    RESERVOIRUnder 8″ tall	MODELSK-Compact, K-Duo, K-Duo Hot & Iced, K-Latte	YOU NEEDShort Holder + 12 filters

    Not every Keurig has a filter compartment at all. Which Keurig models actually use water filters →

• DescalingHow often, vinegar or solution, the descale light won't turn off
  Back

  Descaling

  • What’s the difference between a water filter and descaling?

    The filter cleans the water going in. Descaling removes mineral buildup that has already formed inside the machine. You need both — a filter slows scale down, it doesn’t remove it.

  • How often should I descale?

    Every 2–3 months for most machines, more often with hard water. Slower brewing or coffee that tastes slightly off is usually the first sign, well before any light comes on. One 8.45 fl oz bottle covers two full descaling cycles.
    How to descale a Keurig →
    How to clean a Cuisinart →
    Shop descaling solution →

  • Can I just use vinegar?

    You can, but it leaves a smell and an aftertaste that takes several rinse cycles to clear, and some manufacturers advise against it. Our descaling solution is odorless and made for coffee machines — Keurig, Nespresso, Breville, Ninja, De’Longhi, Cuisinart, Mr. Coffee and most other single-serve, drip and espresso brewers.
    Vinegar vs descaling solution →
    Shop descaling solution →

  • My Keurig still shows the descale light after descaling.

    On most models the light doesn’t clear by itself — it has to be reset, and the reset is different on every model.
    Reset the descale light on every model →

• Paper & cone filtersWhich liners fit your pod, #4 or size 02, unbleached
  Back

  Paper & cone filters

  • Which K-Cup paper liners fit my pod?

    They fit virtually all refillable capsules, including GoodCups, Solofill, EZ-Cup, EkoBrew and Simple Cups. No trimming needed. Take the 100-count to try them, or the 300-count if you already know you’ll use them daily.
    Shop 100-count →
    Shop 300-count →

  • Do I need #4 cone or size 02?

    #4 cone fits Cuisinart, Ninja, BLACK+DECKER, Hamilton Beach, Mr. Coffee and most 8–12 cup drip brewers. Size 02 is for pour-over — Hario V60 02 and most size 02 cone drippers.
    What size coffee filter fits a Cuisinart? →
    Shop cone filters →

  • Are your paper filters bleached?

    No. They’re made from natural unbleached paper — no chlorine bleaching, no dyes, no chemical aftertaste.

  • Do you have a reusable option for Cuisinart?

    Yes — our reusable Cuisinart cone filter fits all 10–14 cup Cuisinart cone-filter coffee makers, and also works in select Ninja brewers with a cone-style basket. Available singly or as a 2-pack.
    Shop the reusable cone filter →

• Tea infusersWhich size, chain or basket
  Back

  Tea infusers

  • Which size tea infuser should I choose?

    Match it to your cup. The small fits espresso cups, 6–8 oz mugs, travel thermoses and teapots with narrow openings. The medium and large are for standard mugs and teapots. If you brew a single strong cup, go smaller; if you brew a pot, go larger.
    Best tea infuser sizes →
    Shop tea infusers →

  • Chain or handles — what’s the difference?

    Chain infusers hang over the rim of the cup and lift out easily. Basket infusers with handles sit inside a wider mug or teapot and give the leaves more room to expand, which usually means better extraction. All of ours are 304 stainless steel with a lid that doubles as a drip tray.
    Chain vs basket infuser →
    What is a tea infuser? →
    Shop tea infusers →

• ShippingDelivery times, free US shipping, tracking, where we ship
  Back

  Shipping

  • Do you ship outside the United States?

    Not currently — GoodCups.com ships within the United States only. Delivery to Alaska, Hawaii, U.S. territories, P.O. boxes and APO/FPO/DPO addresses may differ from standard delivery; availability is confirmed at checkout.

  • How much is shipping?

    Standard U.S. shipping is free on every order. There’s no minimum.
    Full shipping policy →

  • How long will my order take?

    Most orders arrive within 2–4 business days after the order is confirmed, often sooner. Business days are Monday to Friday, excluding U.S. federal holidays. If you check out with Buy with Prime, the delivery estimate shown at checkout is the accurate one for your order.
    Full shipping policy →

  • How do I track my order?

    You’ll get a confirmation email right after ordering and a tracking link as soon as the parcel ships. Orders with several products may be split into separate shipments and arrive on different days, so a partial delivery doesn’t mean something is missing. If it’s been more than 7 business days, send us your order number.
    Sign in to see your orders →

• Returns & support30-day returns, refunds, Amazon and Walmart orders, contacting us
  Back

  Returns & support

  • What’s your return policy?

    Every order is covered by a 30-day money-back guarantee — you have 30 days from delivery to request a return. For a standard return the product needs to be unused, in original condition and packaging, with your order number or other proof of purchase.
    Full refund policy →

  • How do I start a return?

    Email support@goodcups.com with your order number, the reason for the return, and photos if relevant. You can also use the form below → We’ll confirm and send instructions, plus a prepaid label when one applies. Please don’t ship anything back before contacting us — unauthorized returns may not be accepted.

  • Who pays for return shipping?

    We cover return shipping on all approved returns — once your return is approved, we’ll send you a prepaid return label at no cost to you. In some cases we’ll simply replace or refund without asking for the product back.

  • Can I return something I’ve opened?

    If it’s defective, damaged or the wrong item — yes, always. Opened consumables such as paper filters, water filters and descaling solution generally can’t be returned otherwise, for hygiene reasons. If you’re unsure whether your item qualifies, just ask.

  • When will I get my refund?

    Once we receive and inspect an approved return, the refund goes back to your original payment method within 10 business days. Your bank or card provider may need a few more days to post it. If more than 15 business days have passed since your refund was approved, contact us.
    Full refund policy →

  • I bought on Amazon, Walmart, eBay or TikTok Shop. Can you help?

    Yes — with one thing to know: returns and refunds for those orders have to be processed through that marketplace’s account, not by us. Send us the marketplace order ID and a short description of the issue, and we’ll walk you through it and make sure it gets resolved.

  • Can I change or cancel my order?

    Contact us as soon as possible and we’ll try — but orders are sent for fulfillment shortly after they’re placed, so cancellation can’t be guaranteed. The same applies to address changes, so please double-check your address before checking out.

  • How do I contact you?

    Email support@goodcups.com or use the form below. We reply within one business day, Monday to Friday — weekend messages are answered the next business day. Include your order number and your coffee maker model and we’ll get you a useful answer the first time.
    Open the contact form →