German Weissbier (hefeweizen) is one of the most heavily carbonated common beer styles, traditionally targeting roughly 3.3-4.5 volumes of CO2 — noticeably higher than most ales (2.2-2.7 volumes) or lagers (2.4-2.8 volumes), and part of what gives the style its characteristically huge, dense, long-lasting foam and the lively mouthfeel that's central to the style's identity.
What that target actually costs in priming sugar
A 19 L (5 gal) batch at 68°F targeting 3.8 volumes — comfortably mid-range for the style — needs 222.9 g of corn sugar, roughly double the 116.7 g a standard-target ale needs from the identical batch volume and temperature. Check this exact dose.
Why this specific style sits right at the safety line
This site treats roughly 3.5 volumes as the safe ceiling for standard glass bottles — and hefeweizen's style range spans right across that line, from comfortably under it at the low end to meaningfully over it at the top. This isn't a coincidence of arbitrary numbers colliding; it's exactly why traditional German wheat-beer bottles are often noticeably heavier and thicker-walled than a standard 12 oz beer bottle, built specifically to hold pressure that a standard bottle wasn't designed for. If you're bottle-conditioning a hefeweizen in standard bottles rather than dedicated heavy wheat-beer or champagne-rated glass, staying toward the lower half of the style range (3.3-3.8 volumes rather than pushing to 4.5) is the safer choice — see what happens if I use too much priming sugar for exactly what's at stake above that ceiling.
If you're kegging instead
Force-carbonating in a keg sidesteps the bottle-safety question entirely, since a keg and its fittings are built to hold far higher pressure safely and reliably than glass — if you have the equipment, kegging is the more forgiving route to a hefeweizen's full traditional carbonation range without needing specialty bottles at all.
Getting there with standard bottles safely
If you do want the top of the traditional range in bottles, use bottles genuinely rated for it (Belgian-style or dedicated wheat-beer bottles built for 4+ volumes, or champagne bottles) rather than standard beer bottles — and even then, treat 4.5 volumes as a firm upper limit rather than something to push past. See priming sugar CO2 targets by style for how this style's target compares to other traditions across the full carbonation spectrum.