diff --git a/spec/components/product_component_spec.rb b/spec/components/product_component_spec.rb
index 904ed10fdc..5b5de68af6 100644
--- a/spec/components/product_component_spec.rb
+++ b/spec/components/product_component_spec.rb
@@ -35,12 +35,6 @@ describe ProductComponent, type: :component do
         )
       )
     end
-
-    it "joins the categories' name" do
-      expect(page.find('.category')).to have_content(
-        /random 1, random 2/, exact: true, normalize_ws: true
-      )
-    end
   end
 
   describe 'on_hand' do
diff --git a/spec/lib/reports/products_and_inventory_report_spec.rb b/spec/lib/reports/products_and_inventory_report_spec.rb
index 7337a674bf..a3feb0d5ae 100644
--- a/spec/lib/reports/products_and_inventory_report_spec.rb
+++ b/spec/lib/reports/products_and_inventory_report_spec.rb
@@ -43,9 +43,8 @@ module Reporting
             allow(variant).to receive_message_chain(:product, :name).and_return("Product Name")
             allow(variant).to receive_message_chain(:product, :properties)
               .and_return [double(name: "property1"), double(name: "property2")]
-            allow(variant).to receive_message_chain(:product,
-                                                    :taxons).and_return [double(name: "taxon1"),
-                                                                         double(name: "taxon2")]
+            allow(variant).to receive_message_chain(:product, :primary_taxon).
+              and_return double(name: "taxon1")
             allow(variant).to receive_message_chain(:product, :group_buy_unit_size).and_return(21)
             allow(subject).to receive(:query_result).and_return [variant]
 
@@ -54,7 +53,7 @@ module Reporting
                                                "A city",
                                                "Product Name",
                                                "property1, property2",
-                                               "taxon1, taxon2",
+                                               "taxon1",
                                                "Variant Name",
                                                100,
                                                21,
diff --git a/spec/lib/spree/core/product_duplicator_spec.rb b/spec/lib/spree/core/product_duplicator_spec.rb
index b36514c206..2d2d47243b 100644
--- a/spec/lib/spree/core/product_duplicator_spec.rb
+++ b/spec/lib/spree/core/product_duplicator_spec.rb
@@ -6,7 +6,6 @@ describe Spree::Core::ProductDuplicator do
   let(:product) do
     double 'Product',
            name: "foo",
-           taxons: [],
            product_properties: [property],
            variants: [variant],
            image: image
@@ -68,7 +67,6 @@ describe Spree::Core::ProductDuplicator do
   it "can duplicate a product" do
     duplicator = Spree::Core::ProductDuplicator.new(product)
     expect(new_product).to receive(:name=).with("COPY OF foo")
-    expect(new_product).to receive(:taxons=).with([])
     expect(new_product).to receive(:sku=).with("")
     expect(new_product).to receive(:product_properties=).with([new_property])
     expect(new_product).to receive(:created_at=).with(nil)
diff --git a/spec/models/spree/product_spec.rb b/spec/models/spree/product_spec.rb
index 0a44698d35..77ad608b74 100644
--- a/spec/models/spree/product_spec.rb
+++ b/spec/models/spree/product_spec.rb
@@ -703,16 +703,6 @@ module Spree
       end
     end
 
-    describe "taxons" do
-      let(:taxon1) { create(:taxon) }
-      let(:taxon2) { create(:taxon) }
-      let(:product) { create(:simple_product) }
-
-      it "returns the first taxon as the primary taxon" do
-        expect(product.taxons).to eq([product.primary_taxon])
-      end
-    end
-
     describe "deletion" do
       let(:p)  { create(:simple_product) }
       let(:v)  { create(:variant, product: p) }
diff --git a/spec/models/spree/taxon_spec.rb b/spec/models/spree/taxon_spec.rb
index bb84da1288..edbc968585 100644
--- a/spec/models/spree/taxon_spec.rb
+++ b/spec/models/spree/taxon_spec.rb
@@ -40,12 +40,7 @@ module Spree
     describe "touches" do
       let!(:taxon1) { create(:taxon) }
       let!(:taxon2) { create(:taxon) }
-      let!(:taxon3) { create(:taxon) }
-      let!(:product) { create(:simple_product, primary_taxon: taxon1, taxons: [taxon1, taxon2]) }
-
-      it "is touched when a taxon is applied to a product" do
-        expect{ product.taxons << taxon3 }.to change { taxon3.reload.updated_at }
-      end
+      let!(:product) { create(:simple_product, primary_taxon: taxon1) }
 
       it "is touched when assignment of primary_taxon on a product changes" do
         expect do
diff --git a/spec/serializers/api/enterprise_shopfront_serializer_spec.rb b/spec/serializers/api/enterprise_shopfront_serializer_spec.rb
index a2f4358ce1..8d85719483 100644
--- a/spec/serializers/api/enterprise_shopfront_serializer_spec.rb
+++ b/spec/serializers/api/enterprise_shopfront_serializer_spec.rb
@@ -12,10 +12,10 @@ describe Api::EnterpriseShopfrontSerializer do
   let!(:taxon1) { create(:taxon, name: 'Meat') }
   let!(:taxon2) { create(:taxon, name: 'Veg') }
   let!(:product) {
-    create(:product, supplier: producer, primary_taxon: taxon1, taxons: [taxon1, taxon2] )
+    create(:product, supplier: producer, primary_taxon: taxon1 )
   }
   let!(:product2) {
-    create(:product, supplier: producer_hidden, primary_taxon: taxon1, taxons: [taxon1, taxon2] )
+    create(:product, supplier: producer_hidden, primary_taxon: taxon2 )
   }
 
   let(:close_time) { 2.days.from_now }
@@ -67,6 +67,5 @@ describe Api::EnterpriseShopfrontSerializer do
   it "serializes taxons" do
     expect(serializer.serializable_hash[:taxons]).to be_a ActiveModel::ArraySerializer
     expect(serializer.serializable_hash[:taxons].to_json).to match 'Meat'
-    expect(serializer.serializable_hash[:taxons].to_json).to match 'Veg'
   end
 end
diff --git a/spec/serializers/api/product_serializer_spec.rb b/spec/serializers/api/product_serializer_spec.rb
index 3877812a88..5a75de4252 100644
--- a/spec/serializers/api/product_serializer_spec.rb
+++ b/spec/serializers/api/product_serializer_spec.rb
@@ -28,7 +28,7 @@ describe Api::ProductSerializer do
   it "serializes various attributes" do
     expect(serializer.serializable_hash.keys).to eq [
       :id, :name, :meta_keywords, :group_buy, :notes, :description, :description_html,
-      :properties_with_values, :variants, :primary_taxon, :taxons, :image, :supplier
+      :properties_with_values, :variants, :primary_taxon, :image, :supplier
     ]
   end
 
@@ -37,8 +37,4 @@ describe Api::ProductSerializer do
 
     expect(serializer.serializable_hash[:properties_with_values]).to include product_property
   end
-
-  it "serializes taxons" do
-    expect(serializer.serializable_hash[:taxons]).to eq [id: taxon.id]
-  end
 end
diff --git a/spec/system/admin/reports_spec.rb b/spec/system/admin/reports_spec.rb
index 7681e1e96c..e5c3b6863c 100644
--- a/spec/system/admin/reports_spec.rb
+++ b/spec/system/admin/reports_spec.rb
@@ -402,8 +402,6 @@ describe '
     before do
       product1.set_property 'Organic', 'NASAA 12345'
       product2.set_property 'Organic', 'NASAA 12345'
-      product1.taxons = [taxon]
-      product2.taxons = [taxon]
       variant1.on_hand = 10
       variant1.update!(sku: "sku1")
       variant2.on_hand = 20
diff --git a/spec/system/consumer/caching/darkswarm_caching_spec.rb b/spec/system/consumer/caching/darkswarm_caching_spec.rb
index c6d559281d..908a4e2b16 100644
--- a/spec/system/consumer/caching/darkswarm_caching_spec.rb
+++ b/spec/system/consumer/caching/darkswarm_caching_spec.rb
@@ -11,7 +11,7 @@ describe "Darkswarm data caching", caching: true do
     create(:distributor_enterprise, with_payment_and_shipping: true, is_primary_producer: true)
   }
   let!(:product) {
-    create(:simple_product, supplier: producer, primary_taxon: taxon, taxons: [taxon],
+    create(:simple_product, supplier: producer, primary_taxon: taxon,
                             properties: [property])
   }
   let!(:order_cycle) {
diff --git a/spec/system/consumer/caching/shops_caching_spec.rb b/spec/system/consumer/caching/shops_caching_spec.rb
index 75607f8200..50ae90160b 100644
--- a/spec/system/consumer/caching/shops_caching_spec.rb
+++ b/spec/system/consumer/caching/shops_caching_spec.rb
@@ -53,7 +53,7 @@ describe "Shops caching", caching: true do
     let!(:property) { create(:property, presentation: "Cached Property") }
     let!(:property2) { create(:property, presentation: "New Property") }
     let!(:product) {
-      create(:product, taxons: [taxon], primary_taxon: taxon, properties: [property])
+      create(:product, primary_taxon: taxon, properties: [property])
     }
     let(:exchange) { order_cycle.exchanges.to_enterprises(distributor).outgoing.first }
 
@@ -92,7 +92,6 @@ describe "Shops caching", caching: true do
         expect(page).to have_content taxon.name
         expect(page).to have_content property.presentation
 
-        product.taxons << taxon2
         product.update_attribute(:primary_taxon, taxon2)
         product.update_attribute(:properties, [property2])
 
diff --git a/spec/system/consumer/producers_spec.rb b/spec/system/consumer/producers_spec.rb
index 67a8d6afe2..36ccd65a47 100644
--- a/spec/system/consumer/producers_spec.rb
+++ b/spec/system/consumer/producers_spec.rb
@@ -19,10 +19,10 @@ describe '
   let(:taxon_veg) { create(:taxon, name: 'Vegetables') }
 
   let!(:product1) {
-    create(:simple_product, supplier: producer1, primary_taxon: taxon_fruit, taxons: [taxon_fruit])
+    create(:simple_product, supplier: producer1, primary_taxon: taxon_fruit)
   }
   let!(:product2) {
-    create(:simple_product, supplier: producer2, primary_taxon: taxon_veg, taxons: [taxon_veg])
+    create(:simple_product, supplier: producer2, primary_taxon: taxon_veg)
   }
 
   let(:shop) { create(:distributor_enterprise) }
diff --git a/spec/system/consumer/shops_spec.rb b/spec/system/consumer/shops_spec.rb
index a807c078d8..c67e5969fe 100644
--- a/spec/system/consumer/shops_spec.rb
+++ b/spec/system/consumer/shops_spec.rb
@@ -146,7 +146,7 @@ describe 'Shops' do
     let!(:closed_oc) {
       create(:closed_order_cycle, distributors: [shop], variants: [p_closed.variants.first])
     }
-    let!(:p_closed) { create(:simple_product, primary_taxon: taxon_closed, taxons: [taxon_closed]) }
+    let!(:p_closed) { create(:simple_product, primary_taxon: taxon_closed) }
     let(:shop) { create(:distributor_enterprise, with_payment_and_shipping: true) }
     let(:taxon_closed) { create(:taxon, name: 'Closed') }
 
@@ -154,7 +154,7 @@ describe 'Shops' do
       let!(:open_oc) {
         create(:open_order_cycle, distributors: [shop], variants: [p_open.variants.first])
       }
-      let!(:p_open) { create(:simple_product, primary_taxon: taxon_open, taxons: [taxon_open]) }
+      let!(:p_open) { create(:simple_product, primary_taxon: taxon_open) }
       let(:taxon_open) { create(:taxon, name: 'Open') }
 
       it "shows taxons for open order cycles only" do
@@ -207,7 +207,7 @@ describe 'Shops' do
   end
 
   describe "hub producer modal" do
-    let!(:product) { create(:simple_product, supplier: producer, taxons: [taxon]) }
+    let!(:product) { create(:simple_product, supplier: producer, primary_taxon: taxon) }
     let!(:taxon) { create(:taxon, name: 'Fruit') }
     let!(:order_cycle) {
       create(