Here Are The Strongest Coffee Grounds Dunkin' Makes - Tasting Table
Briefly

For many coffee drinkers, coffee is essential for their daily routine, especially for those seeking a strong caffeine boost. Dunkin's Midnight Brew, a dark roast coffee, is highlighted as a top choice for its strong flavor and high caffeine levels, which can reach 330 mg in a large serving. However, it's noted that roast levels, while significant for flavor, don't drastically affect caffeine content, making the Original Blend medium roast just as potent. Interestingly, light roasts may contain slightly more caffeine than their dark counterparts, although the differences are minimal.
Many of you reading this depend on the caffeine a cup (or two) provides you in the morning to get you through the busy day ahead.
Dunkin's dark roast, also known as Midnight Brew, delivers the strong, rich, and bold flavored beans that dark roast coffee drinkers will love.
Interestingly, light roasts are actually known to have more caffeine than dark and medium roasts - but, still, the difference is only minimal.
To get the most caffeine out of your Dunkin' Midnight Brew, you're going to want to grind the beans up as finely as possible.
Read at Tasting Table
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