– Q. Does one have to eat meat and drink wine on every day of Chol Hamoed (the intermediate days of Passover) also?
How much and how many times a day?

A. As is obvious from Shulcsan Aruch, the basic mitzvah of rejoicing during Yom Tov known as Ve’samachta Be’chagecha, applies also to Chol HaMoed just as it applies to Yom Tov.

Nowadays, when the Beis ha-Mikdash is no longer standing and we cannot rejoice by eating the meat of the sacrifices, we can rejoice only by drinking wine. It is, therefore, a requirement for every person to drink at least 3 to 5 fl. oz. or 90 to 150 cc. of wine [within 2 – 4 minutes] on each day of Chol ha-Moed when possible.
Some maintain that the minimum is only 86cc.

Horav Shlomo Miller’s Shlit’a opinion is that it is only needed once a day and it is preferable to drink it in the morning on the meal after davening.

Rabbi A. Bartfeld as revised by Horav Dovid Pam, Horav Aharon Miller, Horav Chanoch Ehrentreu and Horav Kalman Ochs Shlit’a.