Which has less caffeine: “decaf” or “caffeine-free”?

Which has less caffeine: "decaf" or "caffeine-free"? learn

Decaf vs. Caffeine-Less in Japan: A Clear Guide

Ever been in a Japanese store wondering about the difference between “decaf,” “caffeine-less,” or even “caffeine-free” coffee? It can be confusing, especially because the labeling rules in Japan are a little different from what you might be used to back home. Let’s clear things up.

The Main Point: “Decaf” and “Caffeine-Less” Mean the Same Thing

When it comes to coffee in Japan, there is no practical difference between the terms “decaf” and “caffeine-less”. Both labels are used for the same type of product.

Under Japanese regulations, if a coffee has had at least 90% of its original caffeine removed, it can be sold using either term.

So, if you see a package labeled “decaf” and another labeled “caffeine-less,” they both meet the same minimum standard. To know which one has *less* caffeine, you’d need to check the specific product description for a more precise percentage, like “97% caffeine removed” or “99.9% caffeine removed.” You can’t tell just from the name.

Warning for Visitors: The “Caffeine-Free” Coffee Confusion

Here’s the most important thing for international visitors to know. In Japan, coffee that is 90%+ decaffeinated can sometimes also be labeled “caffeine-free coffee” . This is very different from the standard in the US, Europe, and many other places, where “caffeine-free” means absolutely ZERO caffeine. This is not the case for coffee in Japan.

What About Drinks with Zero Caffeine?

If you are looking for a beverage that has absolutely no caffeine, you should look for the term “Non-Caffeine”. This is the Japanese label for products that are naturally caffeine-free and never contained caffeine in the first place.

  • Examples include barley tea (mugicha), rooibos tea, soba tea, and most herbal teas.

Quick Summary Chart

Term You’ll See in Japan Applies To What It Means
Decaf / Caffeine-Less Coffee, Black Tea, etc. Had caffeine, but most of it (90%+) was removed. Contains trace amounts.
Non-Caffeine Barley Tea, Rooibos Tea, etc. Naturally never had caffeine.
Contains zero (0) caffeine.

So, when choosing a coffee, don’t worry about the difference between “decaf” and “caffeine-less”—they’re the same. If you want to avoid caffeine completely, make sure to choose a “non-caffeine” drink like mugicha or rooibos tea.