Read the positive result literally
A positive local result means the exact cup code appears in the selected lid’s reviewed matching-cup list. For example, C-KCP16W is explicitly listed for C-KCL90. That is a bounded source relationship. Rim Supply has not filled the cup, attached the lid, inverted it or transported a beverage. The tool does not attach a leak percentage, retention force or performance grade to the maker’s named pairing.
Keep an unknown result equally precise
Unknown means this reviewed dataset does not establish the selected exact relationship. It is not a report that a tested combination failed. An unlisted cup might require another source, another lid or a more specific current item record. The site does not infer the answer from a shared ounce size or nominal millimeter number. A broad family description is preserved as context but does not replace a named entry in the limited lookup.
Do not upgrade a source match into an activity guarantee
A maker-listed pair does not tell this site how a finished order will behave in every delivery bag, vehicle, beverage temperature or handling condition. No heat-transfer or liquid-leakage experiment was run. A cafe’s actual service configuration may also contain other components and requirements. Keep the selected product relationship and the business’s own applicable verification process separate rather than treating one source field as proof of the complete use environment.
Preserve the source beside the order
When saving a positive lookup, retain the actual cup and lid codes and the dated manufacturer-store link. If a future shipment uses a changed suffix or a revised cup series, review the source relationship again. A saved result should not become a timeless approval for all future products with a similar title. Independent compatibility and food-contact review remain pending, and the public tool clearly labels its output as a source match rather than an installed-fit certificate.
Read the output before using it in a checklist
A purchasing checklist can record source match found without changing that phrase to leak-proof approved. Those are different statements. Retain the exact selected lid and cup codes so the limited result can be traced to the published entry. A future buyer should be able to see what was reviewed and what was not tested, rather than inheriting a vague tick mark that implies a completed physical experiment.
Sources & scope
Checked November 4, 2026. Manufacturer and retailer references support the specific statements. Dated displayed prices are not final checkout quotes, performance rankings or performance testing. This shopping reference does not replace the exact product label or qualified individual advice. Current received labels, actual fitted configuration and independent food-contact/material/compatibility/content/commerce review remain pending.
Karat / LollicupStore: C-KDL626 exact current offer and matching-cup list ↗
Karat / LollicupStore: C-KCL90 exact current offer and matching-cup list ↗
Keep reading
Why should a lid order start with the cup code? ↗
Is a lid’s outside edge the same measurement as the cup’s rim? ↗