Is cold brew coffee safe during pregnancy?

What does the evidence say about cold brew coffee during pregnancy?

1. A 12-ounce coffeehouse-style coffee can already contain about 235 mg of caffeine, more than the full 200 mg daily amount most experts recommend during pregnancy, and cold brew is typically served in large, concentrated portions that make this easy to hit in one cup. 1
2. Cold brewing uses a much higher coffee-to-water ratio than drip coffee, and laboratory testing found cold-extracted coarse coffee grounds released noticeably more caffeine than the same grounds brewed hot, about 990 mg per liter versus 840 mg per liter. 2
3. A systematic review of caffeine safety research found that most studies looking at intake below 300 mg a day did not report clear reproductive or developmental effects, though it flagged isolated higher-dose reports and only moderate confidence overall, part of why pregnancy guidance stays conservative at 200 mg. 3
4. NICHD-funded research following more than 2,500 pregnant participants found that low-to-moderate caffeine intake within the standard 200 mg guideline in early pregnancy was linked to a lower risk of gestational diabetes and a more favorable cardiometabolic profile, with no link to preeclampsia or gestational hypertension. 4
5. Because brewing method and serving size change the total so much, MotherToBaby recommends checking a beverage's actual label or menu listing for its caffeine amount rather than assuming based on cup size or coffee type alone. 1

Is cold brew coffee safe in each trimester?

• First trimester. First-trimester caffeine research mostly looks at miscarriage risk, and studies point to a possible increase in that risk at moderate (200 to 300 mg) or high (over 300 mg) daily intake, while low intake hasn't shown the same association. A concentrated cold brew makes it easier to cross into that moderate range in a single cup.
• Second trimester. Research following pregnant participants found that low-to-moderate caffeine intake within the standard 200 mg guideline in early second trimester was linked to a lower risk of gestational diabetes and a more favorable cardiometabolic profile, with no link found to preeclampsia or gestational hypertension.
• Third trimester. Fatigue tends to peak again in the third trimester, which is exactly when a large, concentrated cold brew is most tempting. The 200 mg ceiling doesn't change by trimester, so the same portion awareness that applied earlier still applies now.

Caffeine in coffee by type (approximate)