Frequently Asked Questions
This campaign runs until the December 14th. Manufacturing of the tumblers will take about three to four weeks, so delivery is estimated for mid January 2016.Last updated:
Manufacturing for the Christmas Tumblers is already underway. The raw material has already been cut into pieces and the tumblers are currently being rough turned on the lathe.
The campaign ends at 11:59 PM MST on December 14th and these will be ready to ship out shortly thereafter.Last updated:
Through my own testing and testing with friends, each tester was not been able to detect a change in taste when identical drinks are consumed from a glass tumbler and the Griffonshead tumbler.
In the spirit of full disclosure, that may just mean that the change of taste is subtle and below each tester's ability to detect.Last updated:
It certainly can!
The high thermal coefficient of heat conductivity of aluminum leads to some interesting results when compared to a glass tumbler.
When you put ice cubes into a room temperature Griffonshead tumbler, the ice cubes quickly melt, and, in turn, the tumbler becomes colder (the ice cubes absorb heat from the tumbler, which causes them to melt). You can pour out the water (or not - some enthusiasts enjoy their whiskey with a splash of water) and then pour in the whiskey.
Another option is to put the Griffonshead tumbler into the fridge.
An interesting feature we’ve discovered during testing, is that, once the tumbler is chilled, it takes a long time for the tumbler to warm back up.
This is because cooling of the tumbler comes from contact with ice cubes, whereas warming of the tumbler comes from contact of the tumbler with surrounding air. The coefficient of conduction for aluminum to ice/water is much higher than that of aluminum to air.
Meaning…the tumbler can be chilled with ice cubes quickly (60 seconds), but will remain cool for up to much longer, typically 15 minutes or more.Last updated:
There is a good chance that your fingers will stick to a tumbler chilled to below freezing, especially if your fingers are wet, but the moisture in your hands may be enough.
Above freezing, there is no risk of that happening...pre-chilling in a fridge is preferred to pre-chilling in a freezer because most fridges are set to about 4°C (40°F). The freezer is a good choice when you want the pre-chilling to happen quickly.Last updated:
If you like your coffee of tea piping hot...you should use a mug for that.
In fact, when it comes to ergonomics, the discipline of designing for interactions of humans with a system (drinkware in this case), the generally accepted pain threshold for human hands is only about 40°C (104°F).
The normal serving temperature for coffee reaches 80°C (175°F), which is far too hot for human hands to handle.
The Griffonshead tumbler is not recommended for drinks above 35°C (95°F).Last updated:
Like a fine chef's knife, the tumblers should be hand washed only. They will likely survive the occasional trip through the dishwasher, but the anodizing may fade.
Also, don't use abrasive powder or pads to clean them, because the finish will get scratched.Last updated:
The entire tumbler is anodized to make it food safe.
Anodizing is an electrochemical process that requires electricity to flow through the tumbler that is being anodized…for that to happen, there needs to be a point of contact with the rack that hold the tumblers for anodizing.
That point of contact typically leaves behind a blemish and in order to control where the blemish its located, we’ve chosen to use a threaded hole. The tumbler threads onto the rack for anodizing and it is plugged with a stainless steel fastener.
For tumblers made of materials that don’t require anodizing, such as stainless steel, the screw is simply part of the aesthetic.Last updated:
Type 2 anodizing is a thinner coating, about .0002” thick. The color comes from dye that is added during the process. The dye is sealed in and won’t leak out, but can degrade from exposure to head or UV light.
Type 3 anodizing is a thicker coating, about .003” thick. The color comes from the thickness of the coating, which is naturally grey. Please note, colors may not match perfectly from batch to batch.
Type 3 anodizing provides more protection against abrasion and scratches, but type 2 also offers some protection, and both are food safe.Last updated:
The capacity of the tumbler is 8 fluid ounces (or 236 mL).Last updated:
The mass of the tumbler is about 16 ounces (460 grams).Last updated:
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