Why Stardew Valley Players Should Hold Off on Making Dinosaur Mayo


  • Stardew Valley update 1.6 introduced a skill book that triples the sell price of artifacts.
  • Since Dinosaur Eggs qualify as such, they can be made significantly more valuable than Dinosaur Mayonnaise.
  • Stardew Valley update 1.6 is currently only available on PC, but is meant to reach consoles and mobile devices in the near future.

Stardew Valley update 1.6 has introduced a way to make Dinosaur Eggs more valuable than Dinosaur Mayonnaise. While doing so requires some legwork, Stardew Valley players may still want to hold off on making any more Dinosaur Mayo if they’re looking to maximize the fruits of their labor, profit-wise.

Dinosaur Eggs have been part of the hit farming sim since its 2016 release. However, they had initially only produced gold-quality Mayo when placed into a Stardew Valley Mayonnaise Machine. This all changed with the November 2019 release of the game’s 1.4 update, which introduced Dinosaur Mayonnaise. Despite not having quality levels like its original counterpart, Dinosaur Mayonnaise sells for more than even iridium-quality mayo.


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But even this valuable commodity has now been outclassed following the release of the game’s latest patch. As recently noted by Reddit user jessipoo451, reading the Treasure Appraisal Guide permanently triples the price of Dinosaur Eggs, making even their worst-quality variants more valuable than Dinosaur Mayonnaise. Obtaining this Stardew Valley skill book thus essentially renders Dinosaur Mayo irrelevant for anything but completing specific (re)quests.

The difference is also fairly significant, as the Treasure Appraisal Guide makes regular Dinosaur Eggs sell for 1050 gold, nearly 32% more than Dinosaur Mayo. Meanwhile, selling iridium-quality eggs is 162.5% more profitable than turning them into mayonnaise after obtaining the skill book. Doing so isn’t particularly difficult, as the guide can be found in both Artifact Troves and Mystery Boxes. But the easiest way to procure it is to simply purchase it from the Stardew Valley Bookseller, which appears twice a season.

Stardew Valley Dino Eggs and Mayo Sell Prices





Treasure Appraisal Guide

Dinosaur Egg





Dinosaur Egg





Dinosaur Mayo






Though the store’s schedule is random, it’s also rather simple to keep track of, as the game will mark the dates when the Bookseller is in town with a balloon icon on the player’s calendar. The Treasure Appraisal Guide is priced at 20,000 gold, so players can make their money back after selling their 29th Dinosaur Egg in Stardew Valley.

While the 1.6 update is currently only available on PC, Eric “ConcernedApe” Barone has repeatedly said that the new patch will also be coming to both consoles and mobile devices “as soon as possible.” In light of that pledge, even non-PC players may want to hold off on making any more Dinosaur Mayonnaise if they are interested in maximizing their profits. As for regular mayo, that artisan good remains more valuable than its ingredients. Namely, the Treasure Appraisal Guide only affects artifacts, which Dinosaur Eggs are, but their regular counterparts are not.

stardew valley

Stardew Valley

Stardew Valley is a hit Indie release that spawned a cult following thanks to its similarities to titles like Harvest Moon and The Sims. Players will take control of their own characters as they are dropped into the eponymous Stardew Valley and given an old dilapidated farm. They’ll cultivate new crops and relationships with the NPCs scattered around the area, as well as combat monsters and embark on other quests.

February 26, 2016



RPG , Simulation

Local Multiplayer , Online Multiplayer


E for Everyone (Fantasy Violence, Mild Blood, Mild Language, Simulated Gambling, Use of Alcohol and Tobacco)

How Long To Beat
53 Hours

X|S Enhanced

File Size Xbox Series
1 GB (November 2023)


Split Screen Orientation
Vertical or Horizontal

Number of Players

Steam Deck Compatibility

Local Co-Op Support
1-4 Players