But it also says that a single serving can be up to 60 grams, or two ounces.
The price is $32, and the serving can be shared; an extra pot of tea is $8.
They've met five times before but not on grass with Federer winning four of them but Tsonga's form at Queen's shows how dangerous a booming serve can be on this most unforgiving surface.
For right-handers with two-handed backhands, a left-hander's serve can be particularly vexing when it pulls them out of the court.
Murray's own first serve can be a major weapon, but if the Scot has a weakness it can be his second serve, which some opponents have targeted to good effect.
Thanks to a light ring around the top with turn signals and eyes that can indicate where it's trying to go, Kashani believes Serve can be a respectful and natural part of the urban environment.
Filling a shell that will be baked without a sauce and covered when later served can be done just as well.
Isner's first serve can be an overpowering 140 m.p.h., and when it goes in (68 percent of the time this year, through Aug. 2), he wins 76 percent of the points.
Nadal's serve, particularly his second serve, can be unintimidating.
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