How much glass-/plasticware do I need?

May 28, 2017

To (almost) quote Shakespeare:

"Plastic Cups or Glassware? - That is the Question"



And yes, it does make a difference! Actually there's a bunch of differences. 


We took the liberty to create a pro/con list for you to make your decision perhaps a little bit easier.

Glassware (recommended for a lower guest count)



- environmentally friendly

   (As glassware won't be thrown away, it is more sustainable)


- looks nice

   (Drinking an expensive Scotch or wine out of glass is simply more




- breakable

   (Unless you celebrate on grass: You drop it, you lose it, and rentals generally charge for broken  



- expensive

   (Renting glassware can be expensive and might exceed your budget)



Plastic Cups (recommended for events with children present)



- no flesh wounds 

   (If you drop a plastic cup and it breaks, it won't necessarily cut off your



- cheap

   (Even if you choose nicely looking, heavier plastic cups, the overall price

   will most likely be lower than getting glassware)



- can be seen as tacky

   (Although people generally never complain about free booze, some people regard drinking wine out

   of plastic as "tacky")


- lots of trash

   (With plastic cups, no one will keep their glasses to refill, so there will be a bunch of trash to get rid


Now that you know if you like glassware or plastic cups we can get down to the real deal!

How do I know how much my guests will drink?


Well, you don't, exactly. But we can give you a great estimate calculated from our long experience!

We will explain to you step by step how we got to our final number, so you can follow along.


If this is too confusing please let us know! If you book your event with us, a glassware calculation is included with our services.


(This calculation includes a calculation for plastic cups)


Information needed:

- Amount of guests (Ex: 100 guests)

- Duration of the bar service (Ex: 5 hours)

- Will glassware be cleaned throughout the event? (Ex: YES)




1. We estimate 1 drink per person per hour if the event is at least 4 hours long. 

(100 x 5 = 500)



2. About 30% of the drinks served are usually beer, which will be served in bottles/cans.

(500 x 0.7 = 350)


This will be the number of plastic cups needed! 


3. Are the glasses cleaned throughout the event? YES - reduce the count by 25%

(350 x 0.75 = 260)


If the glasses are not cleaned throughout the event the count can be reduced by 10% as some people will bring glasses back for a refill.

(350 x 0.9 = 315)

Type of Glasses


Lastly, you will need to know what kind of glasses to rent (there are so many to choose from).


We recommend 3 types of glassware to cover all basic needs:


Specialty Glasses - approximately 30%

(Depend on your bar menu. E.g. Martini Glasses)


All Purpose Glasses - approximately 35%









Wine Glasses - approximately 35%










So much Math!

Now, get yourself a drink. You deserve it!




Joshua Mentrup

Alcohol Connoisseur

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With a direct, fun approach, Barspirit is a full-service Los Angeles CA mobile bartending service firm, specializing in mobile bartending services in Los Angeles CA.

Barspirit offers professional bartending services at affordable rates. We offer a wide range of skills that have years of proven results at all types of Los Angeles CA events. All of this, of course, is designed to help you ease your stress on your special day so you can simply enjoy your event.

Our team of experienced pros can provide bartending services that will exceed your expectations. We power parties with the most motivated, skilled and professional mixologists / mobile bartending service in Los Angeles CA. Whether your needs are basic or complex, Barspirit provides the services and skills that will make your event a success, all at an affordable price.

In addition to weddings, we also offer services for birthday parties, corporate events, bridal and baby showers, festivals or charity events.

We want to make your event a memorable and smashing success. Our trained personelle takes the stress away by serving the most delicious libations to your guests by the most talented bartenders!