The Tsubu Tube series is a mentaiko with a tube that has been on sale since January 2013. The lineup ranges from standard plain to unique flavors such as "olive basil flavor" and "spicy habanero". It is a popular product that has sold more than 400,000 bottles so far, as it is supported because it can be easily used as a seasoning for seasoning dishes.
"Mentaiko + butter" to be released this time is the 10th new flavor in the series that mixes mentaiko and butter. If you apply it to bread, you can enjoy authentic mentaiko butter toast. You can also make mentaiko pasta, butter rice, pilaf, etc. just by adding your favorite ingredients.