The Most Expensive Chocolate Chip Cookie in History
Cargo does not travel cheaply to the ISS. A Falcon 9 and Dragon capsule mission to the ISS costs roughly $140 million with a payload of about 6,000 kilograms, translating to around $23,300 per kilogram. A single DoubleTree chocolate chip cookie disc of frozen dough weighs a fraction of a kilogram, but when you factor in the weight of the oven, the silicone pouches, the support systems, and every other piece of hardware involved, the per-cookie cost climbs into deeply uncomfortable territory.
That is where the headline figure comes from. It is not what anyone literally paid for a single cookie, but rather a reflection of the true, fully loaded cost of putting experimental food hardware into orbit. On the Cygnus spacecraft, launch cost runs around $95,000 per kilogram; on SpaceX vehicles, it works out to roughly $59,000 per kilogram. Either way, it is a number that puts a starkly different value on a chocolate chip treat.
A New York Couple With a Very Unusual Kitchen Plan
The Zero G Kitchen project was developed by space entrepreneur Ian Fichtenbaum and social media specialist Jordana Fichtenbaum, a New York-based couple who set out to design a “space kitchen” one appliance at a time, starting with the oven. Their logic was both practical and a little romantic: the kitchen is the heart of the home, and if humans were going to live in space for months or years at a time, they deserved something better than vacuum-sealed pouches of freeze-dried food.
With the growth of the commercial space industry and plans to go to the Moon and Mars, they felt that someone should start providing a higher level of food and hospitality, and drew up a plan to build household appliances for the space station. DoubleTree by Hilton provided the pre-made cookie dough, which was sent up to the ISS along with the oven, and Nanoracks, a leading provider of commercial access to space, also collaborated on the project.
Why Conventional Ovens Simply Cannot Work in Orbit
Traditional convection ovens function by utilizing gravitational properties: hot air rises and cool air falls, creating the circulation that bakes food evenly. In microgravity, that process does not happen. There is no up, no down, and no natural airflow to distribute heat around the food. An ordinary kitchen oven in orbit would simply heat the air around the element and leave it sitting there.
Since convection is not possible or is difficult in zero gravity, heating in the Zero G Oven is accomplished through electric heating elements, similar to those found in a toaster oven, powered by electricity drawn from the ISS’s internal power system, with heating elements placed to create a sufficient pocket of heat around the food sample. On top of that, the oven had to keep food secure and stationary while it baked, and also had to run on a limited power supply so as not to blow a fuse on the space station.
The Crumb Problem: A Safety Issue, Not a Tidiness Issue
On Earth, crumbs fall to the floor. In space, they float. That distinction matters enormously aboard a spacecraft packed with sensitive electronics, air filtration systems, and life support equipment. A loose crumb drifting into the wrong ventilation port could cause real damage.
The compact, cylindrical oven can only bake one cookie at a time, which is placed in a special silicone pouch and mounted in the oven. The pouch is required to reduce the “potential risk of producing crumbs,” according to NASA, which can float away and damage sensitive machinery in the space station. Two 40-micron filters in the silicone sheets allow steam and hot air to escape, but also prevent cookie crumbs from escaping and potentially damaging filters or sensitive equipment on the station. It is a level of engineering that no home baker has ever needed to think about.
The Bake Times That Stunned Everyone
The average DoubleTree chocolate chip cookie bakes in a convection oven for 16 to 18 minutes at 300 degrees Fahrenheit on Earth, but there was no recipe for baking cookies in orbit. The engineers expected some difference in baking time. What they got was a result that surprised even the experts.
In baking the first cookie, they found that after 25 minutes it was underbaked. The second cookie only started to fill the station with its delicious aroma after a whopping 75 minutes in the oven. The cookies that seemed to bake the best were the fourth and fifth cookies, which baked for 120 and 130 minutes respectively, and were then left to cool outside the oven for 25 and 10 minutes respectively. That is roughly six to eight times longer than any batch you would make at home.
What Luca Parmitano Found When He Opened the Door
Following the November 2 launch from NASA’s Wallops Flight Facility in Virginia, ISS Commander Luca Parmitano of the European Space Agency baked the brand’s cookie dough inside the prototype oven, one cookie at a time, as fellow crew members, including NASA astronaut Christina Koch, checked on the progress. The experiment ran over the course of several days during December 2019.
After three doughy results, astronauts Koch and Parmitano managed to produce two that were “nice and brown, with melted chocolate chips.” In the microgravity environment on board the ISS, smells spread via individual aroma molecules that travel in whatever direction they are moved; on Earth, aroma molecules collide randomly with air molecules and move in all directions. The station reportedly smelled warmly of fresh-baked chocolate chip cookies – a detail that crew members noted with obvious delight.
The Astronauts Could Not Eat Them
Here is the detail that tends to frustrate people most. After baking five cookies, one at a time, over multiple days, the crew of the ISS was not allowed to eat a single one. According to the official NASA experiment description, once the cookies were cool, the samples were removed from the rack for pictures and returned to the ground for analysis.
None of the cookies were eaten by the astronauts for fear of being undercooked, but instead were frozen and returned to Earth for analysis. Three of the baked cookies, along with other experiments and cargo, returned to Earth on the SpaceX Dragon spacecraft at around 10:41 a.m. ET on January 7, 2020. At that point, the first batch of space cookies was perhaps more likely to end up in a museum than in someone’s belly; DoubleTree offered to donate one to the Smithsonian National Air and Space Museum.
Why the Shape Stayed Normal – and Why That Was Surprising
Before the experiment, scientists genuinely did not know what a cookie would look like after baking in zero gravity. Many expected the dough to puff up into a sphere, freed from the flattening effect of gravity. Some expected it to behave unpredictably in ways nobody could quite model in advance.
The successful baking experiment delivered some surprising results and answered the question of what a cookie baked in space would look like. The cookies appeared visually similar to their Earth-baked counterparts, which was itself a significant scientific finding. Researchers were excited to understand why bake time and temperature in space varied so much from Earth-based results, and whether the specially designed baking tray impacted the final shape of the cookies. The silicone pouch’s geometry, it turned out, probably played a major role in preserving the familiar round shape.
Food, Morale, and the Psychology of Being Far From Home
The cookie experiment was not just a publicity stunt. It was rooted in a real and well-documented psychological need. Promoting psychological well-being through food is crucial for astronauts’ mental health during long-duration missions, and enhancing the variety, taste, and comfort aspects of space food can contribute to astronauts’ overall happiness, morale, and sense of connection to Earth.
The need for a space food system goes beyond nutrition. There are social and well-being benefits. Knowing that you have access to a variety of healthy foods keeps morale up, and the ability to share or trade high-value food items with fellow astronauts can create goodwill and a desire to cooperate. During the simulated manned landing on Mars experiment MARS500 in Russia, many subjects showed “diet menu fatigue” and even became tired of their favorite food. For missions measured in years rather than months, this is a serious operational risk.
What This Means for the Road to Mars
According to researchers, there is currently no solution to the nutrition roadblock for Mars missions. There is currently no system designed to supply astronauts with the needed nutrition for any long-duration spaceflight, and researchers write that “currently, no food system exists to meet the nutrition, acceptability, safety, and resource challenges of extended exploration missions, such as a mission to Mars.”
Experts hope that the cookie experiment will add some freshly baked options to the menu currently available in orbit, something that is particularly important as scientists prepare for extended missions to the Moon and Mars. Zero G Kitchen also has future plans for trays that could allow grilling, pan cook, and griddle modes of cooking using the same oven aboard the space station. The ambition has always been a full space kitchen, not just a single novelty cookie.
From Expeditions 59 through 70, astronauts aboard the ISS used the oven to bake a variety of foods, most notably cookies, building a body of knowledge that did not exist before 2019. As former NASA astronaut Mike Massimino put it, “We now know this can be done,” and the success of this experiment opens “the door for other opportunities to cook things.”
A chocolate chip cookie, in the end, turns out to be a surprisingly precise scientific instrument. It reveals how heat moves without gravity, how long familiar chemistry takes to work under alien conditions, and how much a small comfort can matter when you are 250 miles above the planet you call home. The price tag was absurd. The science was real. The smell, by all accounts, was worth it.
