Affiliate Disclosure
Effective and last updated: 2 August 2026
Amazon Associates disclosure
As an Amazon Associate I earn from qualifying purchases.
CaffCalc participates in the Amazon EU Associates Programme. Eligible links are labelled as advertisements or paid links near the point where they appear. If you click one of these links and make a qualifying purchase, the site owner may receive a commission at no extra cost to you.
OneLink and international visitors
The primary links use the UK tracking tag bendickman-21. Amazon OneLink may redirect an eligible international visitor to a local Amazon store when the associated accounts and matching settings support it. Amazon, not CaffCalc, controls product matching, redirection, availability and checkout.
Editorial independence
Affiliate commission does not change CaffCalc calculations or scientific references. Links are optional and are not endorsements, medical recommendations or guarantees that a product is suitable for you. Product recipes and caffeine content can change, so check the current manufacturer label before use.
Prices and purchasing
CaffCalc does not display Amazon prices, ratings or stock claims. Any purchase is made directly from Amazon or the relevant marketplace seller and is governed by the retailer’s policies. You can use the calculator and read every article without following an affiliate link.